Grave Glovewort is an upgrade material in Elden Ring that enhances normal Spirit Summons. The Demi-Humans, Mad Pumpkin Head, Lone Wolves, and plenty of others can all be summoned in certain situations to help the player overcome a particularly challenging obstacle. They get noticably stronger when leveled up, though.
Elden Ring introduces the concept of Spirit Allies to the FromSoftware formula, a mechanic that players tend to use more and more when the game starts getting rougher and rougher. Grave Glovewort (4), (5), and (6) will get your Spirit Ashes up to Level 6, but to find the Bell Bearing that unlocks them for purchase in Roundtable Hold, you need to go to the Mountaintops of Giants.
Head To The Mountaintops of Giants After Beating Morgott
The Mountaintops of Giants is a late-game area, one of four or five before the final boss of Elden Ring. To get here, you will need to progress through Leyndell until you come across Morgott, the Omen King. You might recognize this boss from earlier in the game - Margit the Fell Omen is an alter ego of Morgott.
Melina will give the player the Rold Medallion for the Great Lift of Rold after walking up to the Erdtree for the first time to see its thorns, which leads to the Mountaintops of Giants. The Great Lift of Rold is found at the end of the Forbidden Lands, a misty road found at the distant eastern reaches of the Altus Plateau.
Find The Glovewort Picker's Bell Bearing (2) In The Giant's Mountaintop Catacombs
About a third of the way through the Mountaintops of Giants, before the massive chain greatbridge, you will encounter a group of Fire Monks and a magma-spewing jarheaded miniboss. If you fight this group of enemies you've gone too far. Instead, drop down to the right of the short ramp leading down to the chain greatbridge.
Here, you will see the Giant's Mountaintop Catacombs embedded in the cliffside (a statue earlier points the way, if you have trouble locating it). At the end of this dungeon is an Ulcerated Tree Spirit, far more powerful than the version found in Leyndell and earlier in the game. Beat this boss to get the Glovewort Picker's Bell Bearing (2).
Give The Twin Maiden Husks The Bell Bearing To Unlock For Purchase
To unlock Grave Glovewort (4), (5), and (6) for purchase from the Twin Maiden Husks, you will need to offer them the Glovewort Picker's Bell Bearing (2). The husks are found right before the Dung Eater's room and just after Sir Gideon Ofnir's study, though they can be easy to miss enshrouded in darkness.
Giving the Twin Maiden Husks a Bell Bearing unlocks new inventory for the player to peruse. This works for all Bell Bearings in the game, including ones that you haven't collected earlier versions of. Even if you don't have the Glovewort Picker's Bell Bearing (1) the husks will still accept the (2) version and sell the second set of regular Ash upgrade materials.
Elden Ring is available now for PC, PlayStation 4 and 5, and Xbox One and Series X|S.